“Tuturu” is widely known as Mayuri Shiina’s distinctive greeting in Steins;Gate. The character appeared in the 2009 visual novel and its 2011 television anime adaptation, where her playful delivery became a memorable recurring vocal mannerism. Fans carried the phrase into anime forums, compilations, remixes, and reaction edits, often spelling it as tuturu, tutturu, or tooturu. It remains popular because the tiny greeting is immediately recognizable to Steins;Gate viewers while also working as a cheerful, amusing vocal cue without additional context.